Till you at length believe it true,
Caught by your own delusive art,
You fancy first, and then assert.
-- Matthew Prior
-- Mark 11:23f.
For
verily I say unto you, That whosoever shall say unto this mountain, Be
thou removed, and be thou cast into the sea; and shall not doubt in his
heart, but shall believe that those things which he saith shall come to
pass; he shall have whatsoever he saith. Therefore I say unto you, What things soever ye desire, when ye pray, believe that ye receive them, and ye shall have them.
-- Mark 11:23f.